Portion of an article of footwear



FIG. 1 is a perspective view of a portion of an article of footwear comprising a first embodiment of the design of the invention.

FIG. 2 is a lateral side elevational view of the first embodiment;

FIG. 3 is a medial elevational view of the first embodiment;

FIG. 4 is a front elevational view of the first embodiment;

FIG. 5 is a rear elevational view of the first embodiment;

FIG. 6 is a top plan view of the first embodiment;

FIG. 7 is a bottom plan view of the first embodiment;

FIG. 8 is a perspective view of a portion of an article of footwear comprising a second embodiment of the design of the invention;

FIG. 9 is a lateral side elevational view of the second embodiment;

FIG. 10 is a medial side elevational view of the second embodiment;

FIG. 11 is a front elevational view of the second embodiment;

FIG. 12 is a rear elevational view of the second embodiment;

FIG. 13 is a top plan view of the second embodiment; and,

FIG. 14 is a bottom plan view of the second embodiment.

The broken lines shown in FIGS. 1-14 are for illustrative purposes only; the broken lines form no part of the claimed design. 

The ornamental design for a portion of an article of footwear, as shown and described. 